Automatic rebound mechanism for cage door of elevator

Abstract

This utility model discloses an automatic spring-back mechanism for cage doors in elevators, relating to the technical field of automatic spring-back cage doors for elevators. It includes a cage, with a spring-back component fixedly installed at the bottom of the cage. A fixed shell is fixedly connected to one side of the cage, and a groove is formed on one side of the fixed shell. A magnet is movably connected to the inner wall of the groove. This automatic spring-back mechanism for elevator cage doors works by pulling the cage door outwards, causing each component to move in sequence, stretching the first spring. The process is smooth and natural, easy and effortless to operate. After entering, releasing the cage door causes the spring force of the first spring to automatically spring the cage door back and close, eliminating the need for manual operation. It is convenient and efficient. When it is necessary to secure the cage door, the magnet adheres to the groove, stably and reliably fixing the cage door to prevent accidental opening and ensuring the safety of items or animals inside the cage. This design combines automatic spring-back and convenient securing functions, simplifying the process of opening and closing the cage door while enhancing the safety and stability of the cage door, providing great convenience for users.

Description

Technical Field

[0001] This utility model relates to the field of automatic spring-back technology for cage doors of elevators, specifically an automatic spring-back mechanism for cage doors of elevators. Background Technology

[0002] The automatic spring-loaded cage door device for hoists is a key component for improving construction safety and efficiency. Its design integrates mechanical mechanics and intelligent control technology. The device mainly consists of a spring energy storage mechanism, guide rails, a locking device, and a linkage system. When the cage door is closed, the spring is compressed to store energy; when it is opened, the spring releases energy to drive the cage door to automatically spring back and close, reducing manual operation and avoiding the risk of the door not closing properly due to negligence. The guide rails ensure smooth operation of the cage door, while the locking device locks the cage door during hoist operation to prevent accidental opening and subsequent falls. Furthermore, the automatic spring-loaded device is often equipped with an anti-pinch function, using sensors to detect obstacles and pause closing to prevent injury to personnel or objects. Its materials are mostly corrosion-resistant and rust-resistant alloys, adaptable to harsh working conditions, and highly durable. This device not only simplifies the operation process but also reduces the rate of human error through automated control, making it an indispensable safety feature for modern construction hoists.

[0003] In existing technologies, automatic spring-loaded cage door mechanisms for hoists may fail to close quickly if the spring-loaded mechanism is not timely. This could lead to falling objects or people falling into the hoist cage during operation due to the door not being closed properly. Excessive spring-loaded force without cushioning could directly impact the door frame or guide rails, which could cause structural deformation or weld cracking with long-term use, reducing the equipment's lifespan. Excessive impact force could also cause the cage door to spring open again after rebounding, creating a safety hazard. Therefore, we need an automatic spring-loaded cage door mechanism for hoists. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic spring-back mechanism for cage doors of elevators to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic spring-back mechanism for a cage door of an elevator, comprising a cage, a spring-back assembly fixedly installed at the bottom of the cage, a fixed shell fixedly connected to one side of the cage, a groove formed on one side of the fixed shell, a magnet movably connected to the inner wall of the groove, a buffer assembly fixedly connected to one side of the cage, a cage door movably connected to the bottom of the cage, the spring-back assembly comprising a support plate installed at the bottom of the cage, a support column fixedly installed at the top of the support plate, a first spring fixedly installed on one side of the support column, a fixed block fixedly connected to one end of the first spring, a movable plate fixedly installed at the bottom of the fixed block, a fixed rod rotatably connected inside the movable plate, a slider fixedly installed at the top of the movable plate, a sliding groove slidably connected to the outer wall of the slider, the sliding groove being formed inside the movable block, and a door hinge fixedly connected inside the movable block.

[0006] Preferably, the slider is fixed by a movable plate and a fixed block, and the top of the movable plate is fixed to the bottom of the slider, and the top of the movable plate is fixed to the bottom of the fixed block.

[0007] Preferably, the support column forms a telescopic structure with the fixing block via a first spring, and one end of the first spring is fixed to one side of the support column, while the other end of the first spring is fixed to the fixing block.

[0008] Preferably, the movable plate forms a rotating structure with the support plate via a fixed rod, and the outer wall of the fixed rod rotates inside the movable plate, while the bottom of the fixed rod is fixed to the top of the support plate.

[0009] Preferably, the buffer assembly includes a connecting shell, which is installed on one side of the cage. A connecting column is fixedly installed at the bottom of the connecting shell, and a second spring is fixedly connected to the bottom of the connecting shell. A connecting plate is fixedly installed at one end of the second spring, and a connecting block is fixedly connected to the top of the connecting plate. A buffer pad is fixedly connected to the top of the connecting block.

[0010] Preferably, the connecting plate forms a telescopic structure with the connecting shell through a second spring, and one end of the second spring is fixed to the bottom of the connecting plate, and the other end of the second spring is fixed to the bottom of the connecting shell.

[0011] Preferably, the connecting plate forms a fixed structure with the connecting block and the buffer pad, and the bottom of the connecting block is fixed to the top of the connecting plate, and the top of the connecting block is fixed to the bottom of the buffer pad.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This automatic spring-back mechanism for a cage door of an elevator...

[0013] By pulling the cage door outward, all components move in sequence, stretching the first spring. The process is smooth and natural, making operation easy and effortless. After entering, releasing the cage door causes the first spring to automatically spring back and close the cage door, eliminating the need for manual operation. This is convenient and efficient. When it is necessary to secure the cage door, the magnet and groove are used to attract it, ensuring a stable and reliable lock and preventing accidental opening. This design combines automatic spring-back and convenient securing functions, simplifying the process of opening and closing the cage door while enhancing its safety and stability, providing great convenience for users.

[0014] When the cage door rebounds, the impact force first acts on the buffer pad, which then presses against the connecting block. This process cleverly disperses the impact force initially. The connecting block then transfers the force to the connecting plate, which further compresses the second spring. Under the strong support of the connecting shell, the second spring undergoes expansion and contraction. Through the coordinated action of this series of components, the energy generated by the cage door rebound can be effectively absorbed and dissipated, significantly reducing the originally large impact force. This not only reduces the noise generated when the cage door rebounds, avoiding interference with the surrounding environment, but also reduces damage to the cage body and related components, extends the service life of the cage, and improves the safety and comfort of use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the groove and magnet structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the rebound assembly and cage door structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the rebound assembly structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the buffer component structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the buffer component structure of this utility model.

[0021] In the diagram: 1. Cage; 2. Rebound assembly; 201. Door hinge; 202. Movable block; 203. Slide groove; 204. Slider; 205. Fixed rod; 206. Movable plate; 207. Fixed block; 208. First spring; 209. Support column; 210. Support plate; 3. Fixed shell; 4. Groove; 5. Magnet; 6. Buffer assembly; 601. Connecting shell; 602. Connecting column; 603. Second spring; 604. Connecting plate; 605. Connecting block; 606. Buffer pad; 7. Cage door. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model embodiment provides an automatic spring-back mechanism for a cage door of an elevator, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the cage includes a cage 1, a spring-loaded assembly 2 fixedly installed at the bottom of the cage 1, a fixed shell 3 fixedly connected to one side of the cage 1, a groove 4 formed on one side of the fixed shell 3, a magnet 5 movably connected to the inner wall of the groove 4, a buffer assembly 6 fixedly connected to one side of the cage 1, a cage door 7 movably connected to the bottom of the cage 1, the spring-loaded assembly 2 includes a support plate 210, which is installed at the bottom of the cage 1, a support column 209 fixedly installed on the top of the support plate 210, and a [missing information - likely a component or element] fixedly installed on one side of the support column 209. A first spring 208 is fixedly connected to a fixed block 207 at one end. A movable plate 206 is fixedly installed at the bottom of the fixed block 207. A fixed rod 205 is rotatably connected inside the movable plate 206. A slider 204 is fixedly installed at the top of the movable plate 206. A groove 203 is slidably connected to the outer wall of the slider 204. The groove 203 is opened inside the movable block 202. A door hinge 201 is fixedly connected inside the movable block 202. By pulling the cage door 7 outward, the cage door 7 drives the door hinge. When 201 rotates, the door hinge 201 drives the movable block 202 to rotate, causing the slide groove 203 on the movable block 202 to rotate. This causes the slider 204 to slide within the slide groove 203, which in turn drives the movable plate 206 to rotate. The movable plate 206 then drives the fixed block 207 to rotate outside the fixed rod 205, causing the fixed block 207 to stretch the first spring 208. After entry, releasing the cage door 7 allows the first spring 208 to drive the fixed block 207. The contraction causes the fixed block 207 to rotate the movable plate 206 outside the fixed rod 205, which in turn causes the movable plate 206 to rotate the slider 204. The slider 204 then slides inside the slide groove 203, which in turn causes the slide groove 203 to rotate the movable block 202. This causes the movable block 202 to rotate the door hinge 201, thereby completing the automatic springback of the cage door 7 and closing it. When it is necessary to fix the cage door 7, it can be attracted by the magnet 5 to the groove 4, thus fixing the cage door 7.

[0024] Furthermore, such as Figure 4As shown, the slider 204 forms a fixed structure with the movable plate 206 and the fixed block 207. The top of the movable plate 206 is fixed to the bottom of the slider 204, and the top of the movable plate 206 is fixed to the bottom of the fixed block 207. With the movable plate 206, the movable plate 206 can be fixed to the fixed block 207 with the support of the slider 204, which enhances the effect of fixing the fixed block 207.

[0025] Furthermore, such as Figure 4 As shown, the support column 209 forms a telescopic structure with the fixing block 207 via the first spring 208. One end of the first spring 208 is fixed to one side of the support column 209, and the other end of the first spring 208 is fixed to the fixing block 207. With the first spring 208, the first spring 208 can extend and retract the fixing block 207 under the support of the support column 209, thereby enhancing the effect of extending and retracting the fixing block 207.

[0026] Furthermore, such as Figure 4 As shown, the support plate 210 forms a rotating structure with the movable plate 206 via the fixed rod 205, and the outer wall of the fixed rod 205 rotates inside the movable plate 206. The bottom of the fixed rod 205 is fixed to the top of the support plate 210. With the fixed rod 205, the fixed rod 205 can rotate the movable plate 206 under the support of the support plate 210, which improves the effect of rotating the movable plate 206.

[0027] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the buffer assembly 6 includes a connecting shell 601, which is installed on one side of the cage 1. A connecting post 602 is fixedly installed at the bottom of the connecting shell 601, and a second spring 603 is fixedly connected to the bottom of the connecting shell 601. A connecting plate 604 is fixedly installed at one end of the second spring 603, and a connecting block 605 is fixedly connected to the top of the connecting plate 604. A buffer pad 606 is fixedly connected to the top of the connecting block 605. When the rebounding cage door 7 impacts the buffer pad 606, the buffer pad 606 is pressed against the connecting block 605, which in turn presses against the connecting plate 604, which in turn presses against the second spring 603. The second spring 603 extends and retracts under the support of the connecting shell 601, thereby reducing the impact force caused by the rebounding of the cage door 7.

[0028] Furthermore, such as Figure 6As shown, the connecting shell 601 forms a telescopic structure with the connecting plate 604 through the second spring 603. One end of the second spring 603 is fixed to the bottom of the connecting plate 604, and the other end of the second spring 603 is fixed to the bottom of the connecting shell 601. With the second spring 603, the second spring 603 can extend and retract the connecting plate 604 under the support of the connecting shell 601, thereby enhancing the telescopic effect of the connecting plate 604.

[0029] Furthermore, such as Figure 6 As shown, the connecting plate 604 forms a fixed structure with the buffer pad 606 through the connecting block 605, and the bottom of the connecting block 605 is fixed to the top of the connecting plate 604, and the top of the connecting block 605 is fixed to the bottom of the buffer pad 606. Through the setting of the connecting block 605, the connecting block 605 can fix the buffer pad 606 with the support of the connecting plate 604, thereby strengthening the fixing effect of the buffer pad 606.

[0030] Working principle: To enter cage 1, the cage door 7 is pulled open, causing the door door 7 to rotate, which in turn rotates the movable block 202. This causes the sliding groove 203 on the movable block 202 to rotate, allowing the slider 204 to slide within the groove. The slider 204 then rotates the movable plate 206, which in turn rotates the fixed block 207 outside the fixed rod 205. This causes the fixed block 207 to stretch the first spring 208. After entering, releasing the cage door 7 causes the first spring 208 to retract the fixed block 207, which in turn rotates the movable plate 206 outside the fixed rod 205. This causes the movable plate 206 to rotate, allowing the slider 204 to move. The slider 204 is rotated, causing it to slide inside the groove 203. This causes the groove 203 to rotate the movable block 202, which in turn causes the door hinge 201 to rotate. This completes the automatic rebound of the cage door 7, thus closing the cage door 7. When it is necessary to fix the cage door 7, it can be attracted by the magnet 5 and the groove 4 to fix the cage door 7. When it is necessary to reduce the impact force of the cage door 7 rebounding, the rebounding cage door 7 impacts the buffer pad 606, causing the buffer pad 606 to press against the connecting block 605, which in turn presses against the connecting plate 604, which in turn presses against the second spring 603. The second spring 603 extends and retracts under the support of the connecting shell 601, thereby reducing the impact force caused by the rebound of the cage door 7.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic cage door rebound mechanism for an elevator comprising a cage (1), characterized in that: A spring-loaded assembly (2) is fixedly installed at the bottom of the cage (1). A fixed shell (3) is fixedly connected to one side of the cage (1). A groove (4) is opened on one side of the fixed shell (3). A magnet (5) is movably connected to the inner wall of the groove (4). A buffer assembly (6) is fixedly connected to one side of the cage (1). A cage door (7) is movably connected to the bottom of the cage (1). The spring-loaded assembly (2) includes a support plate (210), and the support plate (210) is installed at the bottom of the cage (1). A support column (209) is fixedly installed on the top of the support plate (210). A first spring (208) is fixedly installed on one side of 09. A fixed block (207) is fixedly connected to one end of the first spring (208). A movable plate (206) is fixedly installed at the bottom of the fixed block (207). A fixed rod (205) is rotatably connected inside the movable plate (206). A slider (204) is fixedly installed at the top of the movable plate (206). A slide groove (203) is slidably connected to the outer wall of the slider (204). The slide groove (203) is opened inside the movable block (202). A door hinge (201) is fixedly connected inside the movable block (202).

2. The automatic rebound mechanism for a cage door of an elevator according to claim 1, characterized by: The slider (204) is fixed by the movable plate (206) and the fixed block (207), and the top of the movable plate (206) is fixed to the bottom of the slider (204), and the top of the movable plate (206) is fixed to the bottom of the fixed block (207).

3. The automatic rebound mechanism for a cage door of an elevator according to claim 1, characterized in that: The support column (209) forms a telescopic structure with the first spring (208) and the fixing block (207), and one end of the first spring (208) is fixed to one side of the support column (209), and the other end of the first spring (208) is fixed to the fixing block (207).

4. The automatic rebound mechanism for cage door of an elevator according to claim 1, characterized in that: The movable plate (206) forms a rotating structure with the support plate (210) through the fixed rod (205), and the outer wall of the fixed rod (205) rotates inside the movable plate (206), and the bottom of the fixed rod (205) is fixed to the top of the support plate (210).

5. The automatic rebound mechanism for cage door of an elevator according to claim 1, characterized in that: The buffer assembly (6) includes a connecting shell (601), which is installed on one side of the cage (1). A connecting column (602) is fixedly installed at the bottom of the connecting shell (601). A second spring (603) is fixedly connected to the bottom of the connecting shell (601). A connecting plate (604) is fixedly installed at one end of the second spring (603). A connecting block (605) is fixedly connected to the top of the connecting plate (604). A buffer pad (606) is fixedly connected to the top of the connecting block (605).

6. The automatic rebound mechanism for a cage door of an elevator according to claim 5, characterized by: The connecting plate (604) forms a telescopic structure with the connecting shell (601) through the second spring (603), and one end of the second spring (603) is fixed to the bottom of the connecting plate (604), and the other end of the second spring (603) is fixed to the bottom of the connecting shell (601).

7. The automatic rebound mechanism for cage door of an elevator according to claim 5, characterized in that: The connecting plate (604) forms a fixed structure with the buffer pad (606) through the connecting block (605), and the bottom of the connecting block (605) is fixed to the top of the connecting plate (604), and the top of the connecting block (605) is fixed to the bottom of the buffer pad (606).

Images